The Argentine Civil War was a civil war that began during the Argentine War of Independence. The conflict was between the federals, who wanted to organize the country as a federation, and the Unitarians, who preferred a centralist government with capital in Buenos Aires. The last military conflict was the 1820 battle of Cepeda; since then a new constituent assembly was convened to write a new constitution and organize the country. The provinces rejected the 1826 constitution because of its centralist tendencies, and the unitarian president Bernardino Rivadavia resigned. The provinces became a confederation once more, and federal Manuel Dorrego was appointed governor of Buenos Aires.